4. Typewriting machines
  5. Key-board or key lever-actuating mechanism
  6. Key-board including keys grouped to facilitate positioning...

Thomas L. Gambaro

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Cursor control--data entry device

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Ergonomic keyboard input device

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board including keys grouped to facilitate positioning...
Patent

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Ergonomic thumb-actuable keyboard for a hand-grippable device

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board including keys grouped to facilitate positioning...
Patent

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Profile ID: LFUS-PAI-P-1198120

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